MESON Chess Problem Database
Problem Display
PID: 50183 (1Br5/2ppP3/1p1kNR1n/1P6/2nK1P2/2pQN3/Bp2Rp2/4b3 w - - 0 1)
Barnes, Barry Peter
Comm., Het Belgisch Schaakbord (L'Echiquier Belge), 1982-1983
#2
11 + 11
| 5110 | Bekroonde Problemen | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Rf8
- 2.exf8Q#
- 2.exf8B#
- 1...Sg4
- 2.Sf5#
- 1...Sf5+
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...Rf8
- Tries
- 1.Qh7?
- threat
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sd8#
- 2.Sf8#
- 1...Sf5+
- 2.Sxf5#
- 1...Rxb8
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sd8#
- 2.Sf8#
- 1...Sxe3
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sd8#
- 2.Sf8#
- 1...Sf7
- 2.Sf5#
- 1...Rd8
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sxd8#
- 2.Sf8#
- 2.Bxc7#
- 1...Rf8
- 2.Sxc4#
- 2.Sxf8#
- 2.Bxc7#
- 2.exf8Q#
- 2.exf8B#
- 1...Sd2
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sd8#
- 2.Sf8#
- 1...Sa3
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sd8#
- 2.Sf8#
- 1...Sa5
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sd8#
- 2.Sf8#
- 1...Se5
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sd8#
- 2.Sf8#
- 2.fxe5#
- 1...Sg4
- 2.Sxc4#
- 2.Sf5#
- 1...Sg8
- 2.Sxc4#
- 2.Sf5#
- 1...dxe6!
- threat
- 1.e8Q?
- threat
- 2.Kxc4#
- 2.Ke4#
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Sf5+
- 2.Sxf5#
- 1...Rxb8
- 2.Kxc4#
- 2.Ke4#
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Sxe3
- 2.Kxe3#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...dxe6
- 2.Kxc4#
- 2.Sxc4#
- 2.Rxe6#
- 2.Qxe6#
- 1...b1Q
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...b1B
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Rd8
- 2.Kxc4#
- 2.Ke4#
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sxd8#
- 2.Sf8#
- 2.Bxc7#
- 1...Sd2
- 2.Kxc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Sa3
- 2.Ke4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Sa5
- 2.Ke4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Se5
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.fxe5#
- 1...Sg4
- 2.Kxc4#
- 2.Ke4#
- 2.Sxc4#
- 2.Sf5#
- 1...Sg8
- 2.Kxc4#
- 2.Ke4#
- 2.Sxc4#
- 2.Sf5#
- 1...Rxe8!
- threat
- 1.e8R?
- threat
- 2.Kxc4#
- 2.Ke4#
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Sf5+
- 2.Sxf5#
- 1...Rxb8
- 2.Kxc4#
- 2.Ke4#
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Sxe3
- 2.Kxe3#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...dxe6
- 2.Kxc4#
- 1...b1Q
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...b1B
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Rd8
- 2.Kxc4#
- 2.Ke4#
- 2.Sxc4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sxd8#
- 2.Sf8#
- 2.Bxc7#
- 1...Sd2
- 2.Kxc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Sa3
- 2.Ke4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Sa5
- 2.Ke4#
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Se5
- 2.Sc5#
- 2.Sg5#
- 2.Sxc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 2.fxe5#
- 1...Sg4
- 2.Kxc4#
- 2.Ke4#
- 2.Sxc4#
- 2.Sf5#
- 1...Sg8
- 2.Kxc4#
- 2.Ke4#
- 2.Sxc4#
- 2.Sf5#
- 1...Rxe8!
- threat
- 1.Qh7?
- Keys
- 1.Rf7!
- threat
- 2.Sxc4#
- 1...Sf5+
- 2.Sxf5#
- 1...Kxe6
- 2.Qg6#
- 1...Sxe3
- 2.Kxe3#
- 1...Sxf7
- 2.Sf5#
- 1...dxe6
- 2.Kxc4#
- 1...Sd2
- 2.Kxc3#
- 1...Sa3
- 2.Ke4#
- 1...Sa5
- 2.Ke4#
- 1...Se5
- 2.fxe5#
- threat
- 1.Rf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 2
- Sets
- R(k);OGATE::PXR(k)=Q
- S(h);N_GUARD::S(D)
- S(h);CHECK,N_GUARD::S(D),XS(h)
- Tries
- Try
- Q(C);
- Threat
- DUALS(6)
- Vars
- S(h);CHECK,N_GUARD::S(D),XS(h)
- S(h);N_GUARD::S(D)
- Refutation
- P(j);N_SPINP(i),P_SPINP(j),XS(H)
- Try
- P(J);
- Threat
- DUALS(9)
- Vars
- S(h);CHECK,N_GUARD::S(D),XS(h)
- Refutation
- R(k);XQ(J)
- Try
- P(J);
- Threat
- DUALS(9)
- Vars
- S(h);CHECK,N_GUARD::S(D),XS(h)
- P(j);N_SPINP(i),P_SPINP(j),XS(H)::QAR(C)+K(E),XS(e)
- Refutation
- R(k);XR(J)
- Try
- Actual
- R(I);
- Threat
- S(D),XS(e)
- Vars
- S(h);CHECK,N_GUARD::S(D),XS(h)
- K(g);N_SPINP(i),OGATEB,P-FLIGHT,P_SPINS(e),XS(H)::QAR2(C)
- S(e);XS(D)::QAR(C)+K(E),XS(e)
- S(h);N_GUARD,XR(I)::S(D)
- P(j);SBLOCK,XS(H)::QAR(C)+K(E),XS(e)
- S(e);::QAR(C)+K(E),XP(d)
- S(e);::QAR(C)+K(E)
- S(e);OGATE::P(F),XS(e)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).